Burner flue



.| S. CHADWICK.

BURNER FLLJE 2 SHEETS-SHEET I F LED FEB 26 Feb 6, 1923.

L, S, CHADWICK Feb. 6, 1923.

BURNER FLUE. Fl LED FEB fam@ MM@- iV mi Fatentefd lf-isb. 6, lgZ.

, aura arar LEE s. cIrADwIcK, or siIANEa HEIGHTS vILLAGE, oIIIQAssIGNoR 'ro'frrIE OLEVE- LAND METAL PRODUCTS COMPANY, OE CLEVELAND, OHIO,` A coiaroEAtrIoN OE OHIO.v

BURNER FLUE.

. Appiieation inea February 2e, i921. semi No. 443,111.

To zZZ whom t may concern:

Be it known that l, LEE S. CHADW'ICK, a. citizen. of the TJnited States, residing at Shaker Heights Village. in they county of Cuyahoga aiidState ofV Ghio, have invented a certain new and useful Improvement in BurnenFlues, of which the following is-a full', clear, and exact description, reference being had to the `accoinoanying drawings. -This invention relates yto improvements in burners oiv the type wherein a drum oriiue is supported above and in operative relation to the combustion device. ln. prevailing burners of this typetliere is a considerable iva-.ste of heat and lan undue'heating of the drum, especially in the regionof its; upper end.

The purpose ol.2 this invention is to correct these diliiculties and increase the eiliciency oli the burner by conserving the heat formerly wasted and deflecting it by an aux# iliary current votfair away .from the drum, the auxiliary air thus itself becoming heated and accordingly:increasing the volume of hot air discharged `from the flue.' o

These, with other and more specic objects, are attained in ,thel embodiments of the invention illustrated-in the drawings accompanying and forming a part hereof and wherein Fig. l is a central vertical section through a burner constructed" in yaccordance with my inventionjFig. 2 is al section on the line 2-2 of Fig. l, looking in the direction of the arrows; and Figs. 3 and t are views, similarto Fig. l, o modified yforms of the invention.

The combustion device lor burner proper isA designated, generally7 by l and it isof the well-known type `wherein va cylindrical wick 2 is guided between inner and outer wick tubes 3 and g 4, respectively, and is adapted to be raised and lowered through the medium ot' a wick-raising' spindle 5. A flame spreader. .6 is supported by' the combustion device in operative relation to the upper end of the wick. The space be-.

tween the inner and outer `wick tubes is supplied with liquid Jr'uel from the pipe 10 wherewitli it has communicative connec- .tions through theiitting l1 that is bound toV the pipe by the clamp 12. The foregoing structure. being a common one, is so well known that a more detailed vdescription thereot` is deemed unnecessary,

Resting upon a ledge 15, ywhich vextends about the outer wick tubeand isfspaceda suitable distance from. its4 upperend, (are brackets 16 of a collar 17 that surrounds the upper portion of the combustion' device-and has its top vedge spaced `acomparatively short distance from the edge of "theV outerwick tube. Afflange 18, vprovided.with .an

upturned peripheral lip 19 and a staggered y row of perforations 207 surroundsthe col-y lar 18 andV has itsinner edge securedthereto. A baille 23, inthe for-in 4of a flat ring,

is supported by legs 24' from the flangeV l18 a suitable distance thereabove.

4 The `lowerendoil adrumO is designed to I rest upon the f angex 19 immediately -inside the upturned lip 19, and the upper endof the drum is directed inwardly as indicated at 31.9 The .drum 30 is provided with an inner wall or shell which, in'the'present form lof theV invention; extends romf ,the upper end of the drum-to a .point slightly below its vertical center where it is flanged outwardly atf34 into contact vwith thel drum,

the upper'end of the shell beingshown as 80 converging at substantially the saine angle v,as the portion 'of the ldruni.l A series 'of .perforations 36 extend* about' the drum Va short dista-nce above the upper' end. of the shell 83. rlhe upper portion ofthe shell is L maintained at a given distance from the drum 30 'by spacersA 37, and'fin the'present instance7 ,the i byy a vbolt :38' which.with a', shorter -bolt 39,1serve to attach a handle 40 to the drum.

A windowzdesignated42 occupies the lower front portion of the drum,l and it is surrounded by-anr-anie Zlwhich holds glass, over the openingfotithe window. l

lVhen the burner is in operat1on,'air is shell is supported y a sheet of transparent material, such as isin-` g F drawn inv through the -perforations 20 of theflange18, a partbeing deflected labout eacli'edge ot thebaile 23. As the' air rises ,within the'fdruiii it commingles witlr the products of combustion and becomesheated, the intensity of the heat increasing as it advances. toward the upper endof the' drum.

This ofcourse resultsin theshell 33ne-V quiriiig a high degree.ot,y teiiipcratuie and the heat that radiates from itis picked` up bya current ofl -air admitted through the perforations 36 and 'wliichvtlows lupvv-ard through the space between theadrum and lso tion of heat that was formerly-wasted, but ;v

the volume of heat expelled .from the burner is enlarged; and urthermorexthe drum is maintained iat aalowerv and more uniform temperature fromtopito bettomthan is thev case in burners equippedI with the ordinary -single'wall drum. lVlentionmightbe made vofithe fact that the `airewhich is directed `:about the outer edUe yof the deilector i 23 sweeps up along the owen-wall of. the kdrum and prevents it from becoming Vas hot as `it otherwise would.

` Infthe 'form of theinvention:illustrated in Fig. 3, .the shella extends to within a short distance oithelower endof the Vdrum 30a,

and the rowoffperforations 36@ isv accord` yinglys-ituated iinthe region ofthe llower end oithe drum. .illnithis modification, the auxiliaryL currentiof 'airA which passesfthrough thetspacebetween the `drum `and :shell 33a maybecomemore highlyheated thanlin the foriner construction, lbut the `present arrangementmay notrhaye'the effect 0; keeping the upper end Offthe drum 30 as cool as in' 'the 'former case.

Y In L@the inner wall 33? is shown .as extending..below. the lower end ot the' drum v30b and resting uponjthe i'lange 18. In this form-'of the invent-ion, theperionations in fthe drum are dispensed with andthe auniliary current ot' air is admittedfdirectly into thespace between the drumv and shell.

An importanteature of my present invention' resides in the shape ofthe colla-r ,17 and its relation-to the top of the burner tubes and to the elementsilS and 28 that are associated with and connected toit.

It will be observe'd'thatthe upper edge Oi the collar 17 is spaced a comparatively short vdistance yfrom and is 'in substantially the plane o'l' the corresponding edge of the outer wick tube 4, incontradistinction to the .types of collars heretofore employed in connection with burners of the class to which this invention r'elatesyan` example of vwhich' niav be 4v found in'iny prior `United. States Letters Patent No. 1,138,729, issued May il, 1915,

and wherein 'the fupp'er fend of the collar .is flared outwardly and upwardly and yentends quite a material dista-'nce above the pianeoi the top edge of the outer wiclrtube.A As is well understood, the 'method of lighting these burners isjbyliiting or tilting the Vline or drunisutticiently 'to aiord access to the wiclrito vwhich a lighted taperor' match is applied, and: with" the "former design N'o collar, this operation was rendered quite difiicult because ofthe Eact 'that the exposed portion of the 'wick was Completely surrounded by and was somewhat below theupper ared i portion of the collar,- -.-maling --it .not only unhandyto -the match or taper to the wick, but the comparatively low` gteniperature of the metal whereof the collar was made tended to extinguish the llame. of. theima'tchortapen It was essential, however, rin the former construction, to iiare the upper end ofthe collaras described, for

without this feat-ure, and inthe absence of some element whichY would perform its function, therev was caused by the draft created l, when the burnerwas innoperation a vhum-k ming sound of high'pitch which was particu'- larlyfennoying; The removal of the upper flared end of the collar. therefore,v presented the problem of howto avoid that. so-,c'alled musicalrlame, and-'this was answered by the inclusion 'othepresent lcollar off'the deT Viiector23 that is applied to the flange' 18.

fMy present construction, therefore, 'possesse's the advantage of being easy to light, and Ais quiet-fof operation,

v'fciaving thus described my invention, what I claim is:

" l. In combination-with aburner 'o'fthe 'character setforth, ay collar supported by the v burner, a perforated flange surroundingthef* collar, and-aL double-wall drum supported inoperative relationjtoithe `flange and outside the zone lof'7perforations wherebyn quantity of'freshair is admitted tothe drum between the inner wall thereof and theiame, said drum having anvopening for admitting air to the spacebetween itswalls.

21111 combination with afburner of the character set'forth, a collar supported by' the collar,i a double wall drum supported in operative' relation to the -flange and outside the Zone of'perforations whereby a quantity ,Y oit iresh air vis admitted to the drum between Athel'inner wall thereofzand'thefiamdsaid drum haringen 'opening for'admittingaan1 to the space betweenits walls, andadei'lec- :torspaced upwardly frointhe ange'lforpdi- `rect-ing a part of said air'toward"theA drum anda part toward the flame the collar;` a .drum supported in operative et' perforatong a shellspaced'inwardfroni thewall ofthe di.l .and extending substantif l lto the upper end ereoi, therejbeing igierrora tions 'Mopeningfthigough "the drurninto the spa-ire between :the jdrurndandA slifelhjanfda detlectorspaced a coi'nparatrvely short Vdistance' Y abovefthe flange, the inner randf' outer edges whereof 'arespaced Llrespectivelyy from the collar and drum.

in combination witha burner o t'thel character set jtorth2 ai collar supported by fthe burner, a.k perforated iiange' surrounding 'Y l ,12o relation to :the flangefand outsidetjhe zone f burner, a perforated fiange surrounding the 4. In combination with burner of the character set forth, a collar supported by the burner, a perforated flange surroundingthe collar, a drum supported by the flange outside the zone of perforationsa shell spaced inward from the wall of the drum and eX- tending substantially to the upper end thereof, the lower end of the shell being turned outwardly into contact with the drum, there being air admitting openings in the drum that communicate with the space between the drum and shell, and a deflector spaced a comparatively short distance above the flange.

5. In combination with a burner of the character set forth, a collar supported by the burner, a perforated flange surrounding the collar, a drum supported by the flange outside the zone of perforations, a shell spaced inward from the wall of the drum and extending substantially to the upper end thereof, the lower end of the shell being turned outwardly into contact with the drum, there being air admitting openings in the drum that communicate with the space between the drum and shell.

6. A drum for use with burners of the character set forth, said drum comprising an inner and an outer Wall that are spaced from each other, the inner wall extending approximately to the top of the outer wall and having its lower end turned outwardly into contact with the outer wall, and the outer wall having air admitting openings communicating with the space between the walls. l

7. A drum for use withv burners of the character set forth, said drum comprising an inner and an outer wall, means for maintaining the inner wall in radially spaced relation to the outer wall, a handle, and means connecting the handle to the drum and serving to hold the inner and outer walls together. Y

8. In a burner of the character set forth, in combination with the outer wick tube, a

collar surrounding said wick tube and hav`y ing its upper edge spaced-from and in substantially the pla-ne of the' corresponding edge of the tube, and a deilector surrounding the collar in spaced relation thereto.

9. In a burner of the character set forth,

in combination with the outer wick tube, a collar surrounding said wick tube andhaving its upper edge spaced a comparatively short distance from and in substantially the plane of the corresponding vedge of saidl wick tube, and a deflector surrounding the collar and supported therefrom" and having an inner edge that is spaced a comparatively short distance from and below the upper edge of the collar.

10. In a burner of the character described. in combination with the outer wick tube, of an upwardly converging collar surrounding the wick tube and having its upper l1. In combination with a burner of the character set forth, a collar supported by the burner, a .perforated'flange surrounding thecollar,gand a double wall drum resting directly upon the flange outside the zone of perforations so that fresh air admitted through said perforations may rise between the inner wall of the drum andthe flame, said drum having an opening for admitting air to the space between its walls. e

12. A drum for use with burners of the character set forth, said drum comprising an outer wall having an annular converging top, an inner wall spacedy from lthe outer wall and having a converging upper end 'supported lin spaced relation tothe annular top of theouter wall, the lower end of the inner wall being directed outwardly into engagement with the outer wall, the outer wall having air admitting openings above the lower end of the inner wall. y

13. A drum for use with burners of the character set forth, said drum comprising a cylindrical shell having an annular converging top wal-l, anl inner wall spaced from the shell and having a convergingftop in spaced relation to the annular wall of the shell, the lower end of the inner wall being flanged outwardly to meet the shell at about its vertical center, the shell having air admitting openings abovev the lower end of the inner wall.

14. In combination with aburner of the between the wall thereof and the flame, said 7 drum having openings for they circulation of air through the space between itswalls.l

15. In combination with aburner of the i -character set forth, a collar supported by the burner, a perforated flange surrounding the collar, a double wall drum supported in 5 l Y operative relation to the flange outside the zone of perforations whereby avquantity of fresh air is admitted to the drum between the wall the'reofand the flame, said drum having openings for the circulation of air through the spacebetween its walls, and a deflector spaced upwardly from the flange for directing fresh air toward the wall of the drum. i

`16. In combination with a burner of the. character set forth, a double wall drum f supported in operative relation to the burner and 1n such manner that a quantity of fresh 1.7. In combination with mburner 0f the character set forth, a double Wall drum supportedin operative relation tothe burner nsueh manner that a quantity uof fresh air is admitted tothe drum between the Wall of the drum and the flame.

Intestmony whereof, I hereunto afHX my srgnature.

LEE s. CHADWICK. 

